Page 97 - DCAP404 _Object Oriented Programming

Object-oriented Programming

Notes 4.8 Review Questions

1. Define class. What is the difference between structures and classes in C++?

2. How can you pass an object of a C++ class to/from a C function?
3. Can a method directly access the non-public members of another instance of its class?

4. What’s the difference between the keywords struct and class?
5. Write a program to add two numbers defining a member getdata () and display () inside
a class named sum and displaying the result.
6. How does C++ help with the tradeoff of safety vs. usability?

7. “The main advantage of using a static member is to declare the global data which should
be updated while the program lives in memory”. Justify your statement.

8. Write a program to print the score board of a cricket match in real time. The display
should contain the batsman’s name, runs scored, indication if out, mode by which out,
bowler’s score (overs played, maiden overs, runs given, wickets taken). As and when a
ball is thrown, the score should be updated.
(print: Use separate arrays to store batsmen’s and bowler’s information)

9. If a member of a class is public, it can be accessed by an external function including a
derived class. Explain with an example.

10. Write a program in which a class has one private member (properties) and two public
member (method).
Answers: Self Assessment

1. functions 2. class
3. access specifier 4. variable
5. declaration 6. defined
7. class definition 8. scope resolution operator

9. scope 10. objects
11. name 12. declaration
13. external 14. private

15. public

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